Calculator for Kindle 4?

[KDA1]

Where can I get a free calculator for my Kindle 4?

[toadhall]

Not from Amazon apparently. The lowest Calc app goes for $0.99

[stephenwilks]

Kindle 3 has the ability to do simple calculations with certain keyboard characters in its search box. Doubtless, K4 also has something similar. but I doubt that is really what you are after. In which case, you could try out the free online bog standard:
http://www.kinstant.com/calculator/
Incidentally, I noted accidentally (while typing this) that you can use two fingers on this calculator by using the 5-Way to move the cursor with a right-hand finger and the spacebar with a left-hand finger to actually enter the characters. This avoids the fiddle of making sure you hit the central key on the 5-Way.

In the similar threads box below this thread, you will see further calculator links. Also:
http://www.amazon.com/dp/B004XN70ZI/
Now the thing is about the above 1 dollar app, that it is probably worth such a small outlay - if it weren't for the exasperating fact that it isn't available (yet) to most countries in the World.

[KDA1]

Wow! You're right- you can do simple math with the search gee-gaw!

How do I install Kinstant calculator on my Kindle?

Just as a side note- a 99 cent program from Amazon isn't worth it since being addicted to Linux.

[stephenwilks]

Kinstant is only online. In these days of 24/7 wi-fi, that doesn't seem too much of a problem.

There is a blog that gives more-or-less the complete rundown on searchbox maths. There are a few slightly more complex possibilities with it. I'll post a link if I rediscover it.

[stephenwilks]

The following is for Kindle 3, but I dare say some of it will work for you on K4. It's also well-worth reading the rest of the page for other quirky tricks that MIGHT still function on K4:

Kindle Calculations

The search window can be used as a simple calculator. Steven Ehrbar has kindly provided most of these details:
Standard operators are + (addition), – (subtraction), * (multiplication), / (division), % (modulus), and ^ (exponentiation).
Parentheses () work for grouping, {} and [] do not.
You can assign values to variables with =; for example, test=9.
The results of the last operation are stored in the variable _ (underscore).
Assign _ to a variable before using it in further calculations. I have found that using _ directly results in the calculation being done twice. For example, if you enter 5*2, then _ is 10. Entering _*2 results in 40, not 20. However, if you enter y=_, you get a result of y = _ = 10. y*2 then correctly results in 20.
The values of pi and e are stored in pi and e, respectively.
Functions, which work on a value or expression in the parentheses, are:
Trig functions: acos(), asin(), atan(), cos(), cosh(), sin(), sinh(), tan(), tanh()
Arguments for trig functions must be in radians
radians = degrees * (pi/180)
You can assign pi/180 to a variable (eg k=pi/180)
To find the tan of 10°, you can then type tan(10*k)
Other functions: abs() [absolute value], exp() [e to the power of], ln() [natural logarithm], log() [base 10 logarithm], sqrt() [square root].

http://blog.diannegorman.net/2010/09...ortcuts-et-al/